To-date, Sphere Grid isnt seeing any play outside of casual Commander, including Duel Commander and cEDH
3 Virtue of Knowledge Costing four colorless and one blue mana, Virtue of Knowledge is an intricate and valuable enchantment
The most recent code is from the latest MTG Arena codes update

Facilier Savvy Opportunist 3x HeiHei Persistent Presence 3x Kuzco Wanted Llama 1x Madam Mim Fox 3x Madam Mim Snake 2x Merlin Crab 3x Merlin Goat 1x Merlin Rabbit 1x Merlin -Shapeshifter 2x Merlin Squirrel 2x Freeze 2x I'm Stuck 2x Beast Forbidding Recluse 2x Benja Guardian of the Dragon Gem 2x Cinderella Knight in Training 2x Eli La Bouff Big Daddy 2x Hercules Hero in Training 1x Kronk Junior Chipmunk 2x Lawrence Jealous Manservant 3x Lilo Galactic Hero 2x Prince Eric Dashing and Brave 3x Prince Naveen Penniless Royal 1x The Huntsman Reluctant Enforcer 2x The Prince Never Gives Up 1x Tiana Celebrating Princess 3x Tiana Diligent Waitress 2x Last Cannon 2x Mouse Armor "Tactical Teamwork" Amber/Sapphire 2x Bashful Hopeless Romantic 1x Christopher Robin Adventurer 2x Doc Leader of the Seven Dwarfs 2x Dopey Always Playful 3x Gaston Baritone Bully 1x Grand Duke Advisor to the King 3x Grumpy Bad-Tempered 2x Happy Good-Natured 2x LeFou Bumbler* 3x Sleepy Nodding Off 3x Sneezy Very Allergic 2x Snow White Lost in the Forest 1x The Queen Commanding Presence 3x The Queen Regal Monarch 2x Painting the Roses Red 1x Belle Inventive Engineer 3x Cruella de Vil Fashionable Cruiser 1 Gaston Intellectual Powerhouse 1x Hiram Flavershan Toymaker 2x Judy Hopps Optimistic Officer 3x Owl Logical Lecturer 2x Philoctetes Trainer of Heroes 3x The Nokk Water Spirit 1x Winnie the Pooh Having a Think 2x Four Dozen Eggs 2x Launch 2x Fang Crossbow 2x Gumbo Pot 3x Pawpsicle

walk through familiar streets with a bustling crowd of reprinted favorites from Ravnicas past and the ten unique guilds that keep the city running COLLECT RETRO CARDSHonor Ravnicas treasured past with Retro cards overflowing with nostalgic charm
I expect that once we actually get to play with the cards, some of the battles in this tier will rise to A-tier or maybe even S-tier, while others will fall toward the unplayable categories